Home / 100,389.36-150,597.12-30,275.76

Finding the Fourth Proportional to 100,389.36, 150,597.12 and 30,275.76

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Solution

The fourth proportional to 100,389.36, 150,597.12 and 30,275.76 is: 45,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,389.36 : 150,597.12 = 30,275.76 : x
  2. Step 2: Convert to fraction form
    100,389.36/150,597.12 = 30,275.76/x
  3. Step 3: Cross multiply
    100,389.36x = 150,597.12 × 30,275.76
  4. Step 4: Simplify right side
    100,389.36x = 4,559,442,261.81
  5. Step 5: Solve for x
    x = 4,559,442,261.81/100,389.36
  6. Step 6: Final answer
    x = 45,417.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.